{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:LGKU4BUISOBHKEWLLARV2LH6OM","short_pith_number":"pith:LGKU4BUI","schema_version":"1.0","canonical_sha256":"59954e068893827512cb58235d2cfe73207e3c0e7f8cfe15f4643e629971428c","source":{"kind":"arxiv","id":"cond-mat/0309682","version":2},"attestation_state":"computed","paper":{"title":"Andreev reflection and enhanced subgap conductance in NbN/Au/InGaAs-InP junctions","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"2), A. A. Golubov (3), A. V. Ustinov (1) ((1) Physikalisches Institut III, Erlangen, Forschungszentrum Juelich, Germany (2) Institut fuer Schichten und Grenzflaechen, Germany (3) Faculty of Applied Physics, I. E. Batov (1, the Netherlands), Th. Schaepers (2), Universitaet Erlangen-Nuernberg, University of Twente","submitted_at":"2003-09-29T18:49:15Z","abstract_excerpt":"We report on the fabrication of highly transparent superconductor/normal metal/two-dimensional electron gas junctions formed by a superconducting NbN electrode, a thin (10nm) Au interlayer, and a two-dimensional electron gas in a InGaAs/InP heterostructure. High junction transparency has been achieved by exploiting of a newly developed process of Au/NbN evaporation and rapid annealing at 400C. This allowed us to observe for the first time a decrease in the differential resistance with pronounced double-dip structure within the superconducting energy gap in superconductor-2DEG proximity systems"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"cond-mat/0309682","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2003-09-29T18:49:15Z","cross_cats_sorted":[],"title_canon_sha256":"e5ab7fa65aeb959e622292b7a6824755264f4f0d548c9d56b4b4a74d2de167ea","abstract_canon_sha256":"7e2a922fb2f47fcd8c302fb5197a83c8fa2aa3ad53a91a5d5df6a381a801ba34"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:39:35.929740Z","signature_b64":"dkEWorhmRdIrER0iIa4++oAt3G1OemO1/1uK/rIhlDZvQYoJrGx4ODTrBMbGeefbzIRmEotL2pcZARpQ19rgCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59954e068893827512cb58235d2cfe73207e3c0e7f8cfe15f4643e629971428c","last_reissued_at":"2026-07-04T16:39:35.929298Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:39:35.929298Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Andreev reflection and enhanced subgap conductance in NbN/Au/InGaAs-InP junctions","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"2), A. A. Golubov (3), A. V. Ustinov (1) ((1) Physikalisches Institut III, Erlangen, Forschungszentrum Juelich, Germany (2) Institut fuer Schichten und Grenzflaechen, Germany (3) Faculty of Applied Physics, I. E. Batov (1, the Netherlands), Th. Schaepers (2), Universitaet Erlangen-Nuernberg, University of Twente","submitted_at":"2003-09-29T18:49:15Z","abstract_excerpt":"We report on the fabrication of highly transparent superconductor/normal metal/two-dimensional electron gas junctions formed by a superconducting NbN electrode, a thin (10nm) Au interlayer, and a two-dimensional electron gas in a InGaAs/InP heterostructure. High junction transparency has been achieved by exploiting of a newly developed process of Au/NbN evaporation and rapid annealing at 400C. This allowed us to observe for the first time a decrease in the differential resistance with pronounced double-dip structure within the superconducting energy gap in superconductor-2DEG proximity systems"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0309682","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0309682/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0309682","created_at":"2026-07-04T16:39:35.929376+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0309682v2","created_at":"2026-07-04T16:39:35.929376+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0309682","created_at":"2026-07-04T16:39:35.929376+00:00"},{"alias_kind":"pith_short_12","alias_value":"LGKU4BUISOBH","created_at":"2026-07-04T16:39:35.929376+00:00"},{"alias_kind":"pith_short_16","alias_value":"LGKU4BUISOBHKEWL","created_at":"2026-07-04T16:39:35.929376+00:00"},{"alias_kind":"pith_short_8","alias_value":"LGKU4BUI","created_at":"2026-07-04T16:39:35.929376+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM","json":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM.json","graph_json":"https://pith.science/api/pith-number/LGKU4BUISOBHKEWLLARV2LH6OM/graph.json","events_json":"https://pith.science/api/pith-number/LGKU4BUISOBHKEWLLARV2LH6OM/events.json","paper":"https://pith.science/paper/LGKU4BUI"},"agent_actions":{"view_html":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM","download_json":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM.json","view_paper":"https://pith.science/paper/LGKU4BUI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0309682&json=true","fetch_graph":"https://pith.science/api/pith-number/LGKU4BUISOBHKEWLLARV2LH6OM/graph.json","fetch_events":"https://pith.science/api/pith-number/LGKU4BUISOBHKEWLLARV2LH6OM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM/action/storage_attestation","attest_author":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM/action/author_attestation","sign_citation":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM/action/citation_signature","submit_replication":"https://pith.science/pith/LGKU4BUISOBHKEWLLARV2LH6OM/action/replication_record"}},"created_at":"2026-07-04T16:39:35.929376+00:00","updated_at":"2026-07-04T16:39:35.929376+00:00"}